Forthun, Rakel Brendsdal
Hovland, Randi
Schuster, Cornelia
Puntervoll, Hanne
Brodal, Hans Petter
Namløs, Heidi Maria
Aasheim, Lars Birger
Meza-Zepeda, Leonardo A.
Gjertsen, Bjørn Tore http://orcid.org/0000-0001-9358-9704
Knappskog, Stian
Straume, Oddbjørn
Article History
Received: 27 November 2018
Accepted: 5 November 2019
First Online: 25 November 2019
Competing interests
: The authors declare no competing interests.